TPS63070RNMT - 2V-16V, 2A Buck-Boost Converter | TI
MPN: TPS63070RNMT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.2 | $3.20 |
| 10 | $2.88 | $28.80 |
| 100 | $2.35 | $235.00 |
| 500 | $1.95 | $975.00 |
| 1,000 | $1.62 | $1,620.00 |
| 3,000 | $1.4 | $4,200.00 |
TPS63070RNMT Overview
A buck-boost converter is a type of DC-DC switching regulator within the broader power management IC category that combines buck (step-down) and boost (step-up) topologies. This lets a single inductor-based stage produce a stable rail from sources such as 4-cell alkaline, 12V lead-acid, or solar inputs whose voltage swings across the output level. The TPS63070 belongs to the switching voltage regulator family used in portable, industrial, and IoT power systems.
Key features include a 3.6A switch current limit, 2.4MHz switching frequency, and low quiescent current of approximately 50uA typical. Synchronous rectification with integrated MOSFETs improves efficiency and reduces external component count, while the 2.4MHz clock permits small inductors and capacitors for a compact footprint. PWM mode maximizes heavy-load efficiency and PFM mode preserves light-load efficiency; the device also supports negative output current sinking in PWM mode per TI datasheet SLVSDD7B.
Architecture-wise, the four-switch synchronous buck-boost topology seamlessly transitions between buck, buck-boost, and boost operating regions with a single inductor, avoiding output discontinuity when the battery voltage crosses the setpoint. The adjustable feedback (FB) pin sets the output with a resistor divider, and programmable soft-start limits inrush current.
Typical applications include battery-powered portable instruments, industrial sensors, IoT wireless nodes, and 12V rail conditioning for microcontrollers, RF modules, and displays. Wide input tolerance makes it ideal for solar or vehicle-supplied systems.
For best results, keep the inductor and input/output capacitor loops short, place the input capacitor at VIN and PGND, and provide adequate copper on the thermal pad. Pricing references are as of 2026-08-28.
Drop-in alternatives for TPS63070RNMT — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with TPS63070RNMT (same form factor and footprint) — differing in Input Voltage Range, Operating Temperature, Output Type, Output Voltage Range, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
TPS63070QRNMTQ1
✅ Drop-In✓ In Stock
$2.49 / Unit
View Datasheet →TPS63070RNMR
✅ Drop-In📋 Reference alternative (not in catalog)
TPS630701RNMR
⚡ Same Package ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
TPS630702RNMR
⚡ Same Package ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
TPS63070QNMRQ1
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
TPS63070RNMT Maximum Ratings & Electrical Characteristics
| Topology | Buck-Boost (synchronous) |
| Input Voltage Range | 2 V to 16 V |
| Output Voltage Range | 2.5 V to 9 V (adjustable) |
| Output Current | 2 A |
| Switch Current Limit | 3.6 A |
| Switching Frequency | 2.4 MHz |
| Number of Outputs | 1 |
| Output Type | Adjustable (FB pin) |
| Operating Temperature | -40C to +125C (TJ) |
| Package | VQFN-HR (RNM), 15 pins |
| Mounting Type | Surface Mount |
| Synchronous Rectification | Yes (integrated MOSFETs) |
| Control Modes | PWM / PFM |
| Soft-Start | Programmable |
| Thermal Shutdown | Yes |
| Negative Current Sinking | Supported in PWM mode |
TPS63070RNMT Pin Configuration
| Pin 1 | PGND — Power ground |
| Pin 2 | VIN — Power input, 2V-16V |
| Pin 3 | VINA — Analog supply for control circuit |
| Pin 4 | EN — Enable input |
| Pin 5 | SS/TR — Soft-start / tracking pin |
| Pin 6 | FB — Feedback, sets output with resistor divider |
| Pin 7 | PGND — Power ground |
| Pin 8 | SW1 — Switch node 1, connect inductor |
| Pin 9 | SW1 — Switch node 1 |
| Pin 10 | SW2 — Switch node 2, connect inductor |
| Pin 11 | SW2 — Switch node 2 |
| Pin 12 | VOUT — Regulated output, 2.5V-9V |
| Pin 13 | VOUT — Regulated output |
| Pin 14 | GND — Ground |
| Pin 15 | PGND — Power ground / thermal pad |
Typical Applications
TPS63070RNMT is suitable for 6 applications: 12V Rail Conditioning for MCUs and RF Modules, Battery-Powered Portable Instruments, IoT Wireless Sensor Nodes, Solar-Powered Systems, Automotive 12V Subsystems, Display and LED Bias Supplies.
12V Rail Conditioning for MCUs and RF Modules
Industrial control boards often run from 12V or 24V rails that sag or spike across the 5V logic level. The TPS63070RNMT accepts 2V-16V input and regulates a stable 5V at up to 2A, passing seamlessly through buck, buck-boost, and boost regions without output dropout. Its 2.4MHz switching keeps inductors small, and synchronous rectification sustains high efficiency for always-on microcontroller and radio loads.
Recommended
Battery-Powered Portable Instruments
Multi-cell alkaline or lithium battery packs swing from above to below the regulated rail as they discharge. The TPS63070RNMT's 2V-16V input and 2.5V-9V adjustable output maintain regulation across the entire discharge curve, while roughly 50uA quiescent current and PFM light-load mode extend battery life between charges or replacements in handheld test and measurement devices.
Recommended
IoT Wireless Sensor Nodes
Wireless sensor nodes need burst-current capability for radio transmit while idling at microamp levels. The TPS63070RNMT supplies 2A peaks for PA bursts from a 2V-16V solar or battery source, and its PFM mode preserves efficiency at sleep-state loads. The 2.4MHz operation permits a compact inductor, fitting constrained node PCBs. Output set by a single FB resistor divider simplifies rail provisioning.
Recommended
Solar-Powered Systems
Solar panel output voltage varies widely with irradiance and temperature, frequently crossing the battery or load voltage. The TPS63070RNMT's 2V-16V input range and automatic buck-boost transition deliver a constant output from dawn-to-dusk conditions without mode discontinuity, making it a simple single-inductor power stage for solar garden devices, remote telemetry, and energy-harvesting front ends.
Recommended
Automotive 12V Subsystems
With the AEC-Q100 qualified TPS63070QRNMTQ1 sibling, this family serves automotive modules supplied from 12V battery rails that droop during cranking below 6V and surge during load dump. The wide 2V-16V input holds infotainment or sensor-module outputs steady through both conditions, and the 2.4MHz switching keeps switching noise out of the AM radio band, easing EMC compliance.
Recommended
Display and LED Bias Supplies
Small TFT and OLED displays need stable 3.3V-9V rails from battery or USB inputs of varying voltage. The TPS63070RNMT regulates any setpoint in its 2.5V-9V range with 2A capability for display backlight drivers and panel logic. Integrated synchronous FETs and a 2.4MHz clock shrink the solution to a single small inductor, fitting slim display modules with tight height limits.
Recommended
Recommended Products Summary
Engineering reference data for TPS63070RNMT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TPS63070QRNMTQ1 | TPS63070RNMR | TPS630701RNMR | TPS630702RNMR |
|---|---|---|---|---|---|
| Package | VQFN-HR (RNM) 15-pin | VQFN-HR (RNM) 15-pin - same | VQFN-HR (RNM) 15-pin - same | VQFN-HR (RNM) 15-pin - same | VQFN-HR (RNM) 15-pin - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Input Voltage Range | 2V to 16V | 2V to 16V | 2V to 16V | 2V to 16V | 2V to 16V |
| Output Voltage | 2.5V-9V adjustable | 2.5V-9V adjustable | 2.5V-9V adjustable | 3.3V fixed | 5V fixed |
| Output Current | 2 A | 2 A | 2 A | 2 A | 2 A |
| Switch Current Limit | 3.6 A | 3.6 A | 3.6 A | 3.6 A | 3.6 A |
| Switching Frequency | 2.4 MHz | 2.4 MHz | 2.4 MHz | 2.4 MHz | 2.4 MHz |
| AEC-Q100 Qualification | No (standard grade) | Yes | No | No | No |
| Packing | Cut tape / small reel (T) | Cut tape (T) | Tape & reel 3000 (R) | Tape & reel 3000 (R) | Tape & reel 3000 (R) |
Key Differentiators
- Widest input range in TI buck-boost family (vs TPS63021)
- Automotive-qualified drop-in sibling (vs TPS63070QRNMTQ1)
- Higher output current than small buck-boosts (vs TPS62740DSSR)
Design Notes
Place the input capacitor as close as possible to the VIN and PGND pins, and keep the SW1/SW2-to-inductor loop short and wide. The four-switch buck-boost topology circulates current through both switch nodes, so minimize the copper loop area of SW1-inductor-SW2 to limit radiated EMI at the 2.4MHz switching frequency. Follow TI datasheet SLVSDD7B Section 9 PCB layout guidelines.
The exposed thermal pad must be soldered to a solid ground plane with an array of thermal vias. At VIN=12V, VOUT=5V, 2A load, dissipation is roughly 1-2W depending on efficiency; inadequate copper can push the junction beyond the 125C rating. Use at least 1 square inch of 2oz copper or a buried ground plane under the pad for high-power continuous loads.
Do not omit the SS/TR soft-start capacitor; omitting it causes hard inrush at startup. Ensure the FB divider uses 1% resistors and the FB node is kept short to avoid noise pick-up. Verify the inductor saturation rating exceeds the 3.6A switch current limit - undersized inductors saturate and trigger current-limit instability.
Compliance Information
RoHS compliance per distributor listings (DigiKey/LCSC). AEC-Q100 applies only to the TPS63070Q (Q1) variant, not this standard part. Verify REACH status on TI product page.
